/Engine/Source/Editor/Kismet/Public/BPVariableDragDropAction.h
Test new variable type against existing links for node and get any links that will break
void GetLinksThatWillBreak ( [UEdGraphNode](API\Runtime\Engine\EdGraph\UEdGraphNode) * Node, [FProperty](API\Runtime\CoreUObject\UObject\FProperty) * NewVariableProperty, [TArray](API\Runtime\Core\Containers\TArray)< class [UEdGraphPin](API\Runtime\Engine\EdGraph\UEdGraphPin) * > & OutBroken )